Distinct clinical phenotypes in acute heart failure identified by unsupervised clustering: a nationwide registry-based study - Bo Eun Park; Dong Heon Yang; Eung Ju Kim; Seong Woo Han; Seong-Mi Park; Hyung-Seop Kim; Ju-Hee Lee; Hyo-Suk Ahn; Mi-Seung Shin; Hyun-Jai Cho; Jung Rang Park; Jin-Ok Jeong; et al. (Frontiers in Cardiovascular Medicine, 2026)